Changing IP of vCSA

Hello everyone,

My environment comprises 3 ESX servers (ESXi 5.0), additionally I have a vCSA virtual machine (vCSA 5.1.0a) on the first ESXi.

Now we are buying a new ESXi server and we want to move the vCSA virtual machine from the old ESXi to the new one.

The current vCSA provides a public ip address (configured statically) and after the moving the IP address will change (because the pool of IP is different).

What is the best practice/procedure to do this changement?

Thanks for your help